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Function std.uni.byGrapheme

Iterate a string by grapheme.

auto auto byGrapheme(Range) (
  Range range
if (isInputRange!Range && is(Unqual!(ElementType!Range) == dchar));

Useful for doing string manipulation that needs to be aware of graphemes.

See Also



import std.algorithm.comparison : equal;
import std.range.primitives : walkLength;
import std.range : take, drop;
auto text = "noe\u0308l"; // noël using e + combining diaeresis
assert(text.walkLength == 5); // 5 code points

auto gText = text.byGrapheme;
assert(gText.walkLength == 4); // 4 graphemes



Dmitry Olshansky


Boost License 1.0.